Forum posts for dwm.exe

VB6 Drag and Drop Performance in Windows 8

I have a rather large VB6 application that features dragging and dropping controls between sub forms in an MDI application. The problem is the performance is really bad during the drag operation. You can see the element redrawing (slowly) as you drag it.

I first encountered this issue in Windows 7 and after some research concluded that it was a compatibility issue with the Aero interface. I was able to work around it by switching off the Aero effects. Now I am using Windows 8 the problem is back, however, this is no longer any Aero to disable.I have tried stopping the dwm.exe process but this just restarts itself in windows 8, I assume that this is because its required for the stupid 'Modern-UI' interface.

I am planning to migrate to .NET in the future but its going to be a big job. For now I need a workaround to get this drag problem working in Windows 8.

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